help picking out a cam and carb

[My68myway]

Ive got a .040 over sbc 4 bolt main with maybe 10k miles on it that I'm getting a little tired of the performance of. I built the motor when I was 14 for when I turned 16 but actually got to drive it when I was 18 and I turn 21 in a week and its just not cutting it anymore. Its got 1.94 heads which I know suck, but there on the list of things to get replaced in time as I get the money (full time college student with part time job lol). The heads to have comp valve springs that are supposed to handle up to .525 lift, roller tip rockers, 9.39 compression ratio, comp magnum 270 cam that has .470" lift, hooker headers, weiand team g intake with a nos fogger set up with a 150 shot, edelbrock 650 cfm carb, and a stall converter that stalls between 2300 and 2600 rpm. I graduate in May and am just looking for a little more pep in the motor to hold me over until I graduate and can build the motor I really want. So my question is I would like to run a little bit bigger cam and carb set up so I was looking for some suggestions as to what yall would recomend. I was looking at the Comp magnum 280 cam part number 249-cl12-212-2which has .480" lift and the Comp thumper cam part number 249-12-601-4 that has .489" lift. which cam would yall recomend out of the 2 or would yall recomend another cam all together and which carb would yall also recomend? I do all the work myself and really dont have anyone else to ask these questions, so any input at all will be appreciated. Thanks in advance.